OPACITY STACK/ DUST MONITORING SYSTEM
Reflecting that no one technology is able to meet all process requirements, PCME have developed a range of technologies which are based on proven physical and practical techniques.  Unique in their operation together with unrivalled features ensures you can be confident of finding the right solution at the right price for your specific application.

Technology Capability 

Dynamic Opacity

Principle of Operation
Stack Size
Applications
Dust Concentration
Temperature Range
Approvals Range
Unique Features

 Ratiometric measurement based on light variation
0.5m – 10m
Bagfilter, Electrostatic Precipitator, Cyclone
2.0 mg/m3 upwards
0 – 800°C
0 – 150 mg/m3 (MCERTS)
Ratiometric measurement permits accurate
measurement when lens coated up to 90%

Electrodynamic

Principle of Operation


Stack Size
Applications

Dust Concentration
Temperature Range
Approvals Range
Unique Features

 

Patented technique based on a charge induction principle derived from particulate interaction with a probe inserted into a stack or duct
0 – 3m (rod sensor)   0 – 6m (cross stack)
Bagfilters, Cyclones, Humid air streams using patented insulated sensor
0.01 mg/m3 and upwards
0 – 800 oC
0 – 10 mg/m3 (MCERTS/TUV)
Unaffected by contamination
Insensitive to calibration shifts due to changing velocities
> 8 m/s (unlike Triboelectric)
Zero and Span Checks
Insulated Sensor for humid applications

TriboACE

Principle of Operation

 

Similar to Electrodynamic but with defined changes in response to changing velocity

Electrodynamic
Cross-Correlation

Principle of Operation

Stack Size
Temperature Range
Velocity Range
Unique Features

 

 


Measures transit time of particles between two rods by cross-correlating Electrodynamic signature
Up to 3m (developed flow)
0 – 400 oC
5 – 50 m/s
Contamination on sensor causes no error
Operates in humid, wet and aggressive environments and after Electrostatic Precipitator
Our instruments are used in thousands of process applications across all industrial sectors covering the full range of particulate monitoring needs.
  • Measuring levels of emissions after highly efficient filtration equipment used in the Pharmaceutical, Lead and Non-ferrous, Chemical and Incineration industries (0.1-20 mg/m3
  • Monitoring and controlling performance of Bagfilters, Electrostatic Precipitators and Cyclones across the Mineral, Metals, Food and Chemical industries (1-100 mg/m3)
  • Monitoring emissions from Power Generation and Combustion processes using Electrostatic Precipitators and Bagfilter control equipment (10-500 mg/m3)
  • Monitoring emissions from process Driers in Ceramic, Detergent, Cement, Food and Chemical industries
  • Monitoring particulate flow in Pneumatic Transfer Systems
  Renowned for innovation in stack particulate monitoring technology, manufacture the most comprehensive stack particulate emission monitors for environmental reporting, process control and arrestment plant management for manufacturing industry - from compliance measurement instruments, network solutions, filter performance to baghouse monitoring. The Company is also established in servicing the powder flow field as well as providing a range of proven products for stack velocity, mass emission and ambient monitoring.

Certified Products

Product

Scheme

Approval

Range

DA60

TUV

BlmSchV 27

0-30mg/m3

DT270/770

TUV

BlmSchV 13 & 17

0-10/mg/m3

DT280/780

MCERTS

Class 4

0-30mg/m

SC620/680

MCERTS

Class4

0-150mg/m3
SC600 TUV BlmSchV 13 0-50mg/m3
WDM1 Holz BG Class H2 & H3 0.1-0.2mg/m3

To maintain our high reputation for producing innovative technology, we rely on understanding issues and changes within the industry.

 

Industry: Automotive
The Project: To continuously monitor the output of particulate and oil mists on in-line and diesel engine production lines
Key Issue: Presence of moisture or sticky particulate
The PCME Solution: DT770 Electrodynamic-based particulate monitoring system with fully insulated sensors
Results: Can be operated as an indicative/qualitative unit or calibrated as a quantitative unit to show emission levels in mg/m3 The utilization of fully insulated sensors ensures that the system is unaffected by particle build-up. Data produced alerts the operator to issues associated with the abatement system and proves the validity of site maintenance work and maintenance programs

 

Industry: Cement
The Project: To continuously monitor the output of particulate after a slag drier and two mills
Key Issue: To significantly reduce time and costs on maintenance associated with existing system
The PCME Solution: SC600 Dynamic Opacity-based particulate monitoring system
Results: No effect on measurement from build-up of dirt on lenses, minor misalignment or stack distortion. Improved technology over existing system providing higher sensitivity and advanced user-friendly features. Emission levels tracked down as low as 1.4 mg/m3 with excellent repeatability and linearity. Reduced maintenance due to built-in self-checks, fixed zero and no lens contamination effect.

 

Industry: Galvanizing
The Project: To continuously monitor the output of particulate from galvanizing process
Key Issues: To satisfy the EPA Monitoring of low levels of sub-micron particulate. Maintenance free operation
The PCME Solution: DT770 Electrodynamic-based particulate monitoring system
Results: Data can be downloaded from the monitor via software. package and is displayed and analyzed to produce reports which fully satisfy requirements of the Local Authority. Maintenance-free during 8-week trial period. Data collected permitted operators to easily identify periods of plant shutdown and operation together with times of peak emissions.
 

 

Industry: Timber
The Project: To continuously monitor the output of particulate after a baghouse and boiler emissions
Key Issues: To satisfy the EPA. To improve maintenance planning
The PCME Solution: DT770 Electrodynamic-based particulate monitoring system
Results: Emission readings from 26 monitoring points continuously displayed and recorded on monitor in maintenance office. A higher than normal level of emission from one of the filters provided early indication of the deterioration of a filter bag. This was quickly replaced to avoid extraction system shutdown associated with the clean-up and replacement of a broken bag. The system functions as an integral part of the operation enabling operators to continuously monitor the condition of each filter. It gives them the ability to quickly respond to minor problems thus reducing filter downtime and consequent interruptions to production.
 

  

Industry: Food
The Project: On-line measurement of powder mass flow trends in spray drying system
Key Issues: To monitor for reduction in flow rate of powder to prevent blockages. To eliminate the need for visual inspection through site glasses where some blockages can be undetected
Hygiene of critical importance in this food application
The PCME Solution: Flowmaster Electrodynamic-based flow monitoring system
Results: The operator has the ability to balance flows in different lines and set alarm levels when flows move outside levels which indicate changes in process conditions. Non-intrusive ring sensors with flush internal finish comprising the same internal diameter as the pipe bore maintain hygiene standards. Early detection of flow disruptions minimizes downtime and optimizes process.